SNMP Configuration and Management Manual

SNMP Configuration and Management Manual—424777-006
Glossary-1
Glossary
Abstract Syntax Notation One. A formal language used to define PDUs and MIBs for
SNMP. The language was developed and standardized by CCITT (International
Consultative Committee on Telegraphy and Telephony) and ISO (International
Organization for Standardization).
access. The attribute of a MIB object that specifies how it can be accessed. Valid values
are read-only, read-write, and non-accessible.
access mode. The ability of members of a community to access MIB objects. There are two
access modes: READONLY and READWRITE.
address resolution protocol. The protocol in the Internet suite of protocols used to map
Internet Protocol (IP) addresses onto Ethernet (and other media) addresses.
agent. In the SNMP framework, a process that performs the network management functions
requested by SNMP managers. The SNMP agent accepts requests from, and sends
responses and traps to, one or more SNMP managers.
agent process. The process that represents an instance of the running SNMP agent.
ALRFMT. The object file that the $ZNFMT process uses to format Syshealth problem-report
alarm data into readable text.
application layer. The layer in the Internet suite of protocols that describes end-user
service technologies.
ASN.1. See Abstract Syntax Notation One.
authentication. The process of determining whether an entity is allowed to perform an
operation.
authenticationFailure trap. A trap signaling that the SNMP agent has received an SNMP
request for which one or more of the following apply:
•
The request is associated with a community that has not been configured into the
authentication table.
•
The request is from an address that has not been defined for a configured
community.
•
The requests attempts to perform a Set operation but is from a community that has
been configured for READONLY access.
authentication scheme. The set of rules by which an SNMP message is accepted or
rejected by the SNMP agent.
authentication table. An internal table that the SNMP agent consults to determine whether
to accept an incoming SNMP request.